Bulk activated carbon filter core will need activated carbon particles into a special plastic shell, with welding equipment will end cap welding on the two end of the shell, the two ends of the shell are put into the filter function of non-woven cloth filter, to ensure that the carbon core in use will not drop carbon powder and black water. According to the needs of customers, shell end cover can be made into different types of connector. Interface: flat pressure type, pipe type.